Only create samba user if not already existing

Check via pdbedit whether the samba user already exists and only call smbpasswd if it does not. This avoids reset of the password on every container restart.

rootfs/etc/cont-init.d/01-config.sh

@@ -121,7 +121,7 @@ if [[ "$(yq --output-format=json e '(.. | select(tag == "!!str")) |= envsubst' "
     echo "Creating user $(_jq '.user')/$(_jq '.group') ($(_jq '.uid'):$(_jq '.gid'))"
     id -g "$(_jq '.gid')" &>/dev/null || id -gn "$(_jq '.group')" &>/dev/null || addgroup -g "$(_jq '.gid')" -S "$(_jq '.group')"
     id -u "$(_jq '.uid')" &>/dev/null || id -un "$(_jq '.user')" &>/dev/null || adduser -u "$(_jq '.uid')" -G "$(_jq '.group')" "$(_jq '.user')" -SHD
-    echo -e "$password\n$password" | smbpasswd -a -s "$(_jq '.user')"
+    pdbedit -L -u "$(_jq '.user')" &>/dev/null || echo -e "$password\n$password" | smbpasswd -a -s "$(_jq '.user')"
     unset password
   done
 fi